Question: i would like to be a nurse when im older do you have to be really good at science to be one?

Not necessarilly Really Good, but you will study science in college while you train, so a bit of advance knowledge really helps. Quite a few of the nurses I know enjoy science, and some have gone back to university to do PhD’s and get futher involved in research.

Studying science opens your options for many career path. But its not necessary you have to be really good in science to choose those paths. Even with basic knowledge of science you can enter in a Nursing school where after studying you will then become specialized of that career.
I am a scientist but that doesn’t mean I know each and every concept of science 🙂
Study hard so you can be good in science as well it will help you in your bachelor degree but you can be a nurse if you are not really good in science 🙂